Abstract
Further improvements in system performance are often limited by the achievable bandwidth between processor and memory. In this paper we look at interposer-based and stacked solutions to integrate processor and 3D memory into a high performance system. The comparison is made for different technological decisions, design problems faced for choosing a certain 3D memory type from Wide IO/1–2, High bandwidth memory (HBM) and Hybrid Memory Cube (HMC). Logic die size, metal layers and material of interposer affected by routing requirements of memory systems are discussed.
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